code.grnet.gr Git - ganeti-local/blob - lib/constants.py

   1 #
   2 #
   3
   4 # Copyright (C) 2006, 2007, 2008, 2009, 2010 Google Inc.
   5 #
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 # General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19 # 02110-1301, USA.
  20
  21
  22 """Module holding different constants."""
  23
  24 import re
  25
  26 from ganeti import _autoconf
  27
  28 # various versions
  29 PROTOCOL_VERSION = 40
  30 RELEASE_VERSION = _autoconf.PACKAGE_VERSION
  31 OS_API_V10 = 10
  32 OS_API_V15 = 15
  33 OS_API_V20 = 20
  34 OS_API_VERSIONS = frozenset([OS_API_V10, OS_API_V15, OS_API_V20])
  35 VCS_VERSION = _autoconf.VCS_VERSION
  36 EXPORT_VERSION = 0
  37 RAPI_VERSION = 2
  38
  39
  40 # Format for CONFIG_VERSION:
  41 #   01 03 0123 = 01030123
  42 #   ^^ ^^ ^^^^
  43 #   |  |  + Configuration version/revision
  44 #   |  + Minor version
  45 #   + Major version
  46 #
  47 # It stored as an integer. Make sure not to write an octal number.
  48
  49 # BuildVersion and SplitVersion must be in here because we can't import other
  50 # modules. The cfgupgrade tool must be able to read and write version numbers
  51 # and thus requires these functions. To avoid code duplication, they're kept in
  52 # here.
  53
  54 def BuildVersion(major, minor, revision):
  55   """Calculates int version number from major, minor and revision numbers.
  56
  57   Returns: int representing version number
  58
  59   """
  60   assert isinstance(major, int)
  61   assert isinstance(minor, int)
  62   assert isinstance(revision, int)
  63   return (1000000 * major +
  64             10000 * minor +
  65                 1 * revision)
  66
  67
  68 def SplitVersion(version):
  69   """Splits version number stored in an int.
  70
  71   Returns: tuple; (major, minor, revision)
  72
  73   """
  74   assert isinstance(version, int)
  75
  76   (major, remainder) = divmod(version, 1000000)
  77   (minor, revision) = divmod(remainder, 10000)
  78
  79   return (major, minor, revision)
  80
  81
  82 CONFIG_MAJOR = int(_autoconf.VERSION_MAJOR)
  83 CONFIG_MINOR = int(_autoconf.VERSION_MINOR)
  84 CONFIG_REVISION = 0
  85 CONFIG_VERSION = BuildVersion(CONFIG_MAJOR, CONFIG_MINOR, CONFIG_REVISION)
  86
  87 # user separation
  88 DAEMONS_GROUP = _autoconf.DAEMONS_GROUP
  89 ADMIN_GROUP = _autoconf.ADMIN_GROUP
  90 MASTERD_USER = _autoconf.MASTERD_USER
  91 MASTERD_GROUP = _autoconf.MASTERD_GROUP
  92 RAPI_USER = _autoconf.RAPI_USER
  93 RAPI_GROUP = _autoconf.RAPI_GROUP
  94 CONFD_USER = _autoconf.CONFD_USER
  95 CONFD_GROUP = _autoconf.CONFD_GROUP
  96 NODED_USER = _autoconf.NODED_USER
  97
  98
  99 # Wipe
 100 DD_CMD = "dd"
 101 WIPE_BLOCK_SIZE = 1024**2
 102 MAX_WIPE_CHUNK = 1024 # 1GB
 103 MIN_WIPE_CHUNK_PERCENT = 10
 104
 105
 106 # file paths
 107 DATA_DIR = _autoconf.LOCALSTATEDIR + "/lib/ganeti"
 108 RUN_DIR = _autoconf.LOCALSTATEDIR + "/run"
 109 RUN_GANETI_DIR = RUN_DIR + "/ganeti"
 110 BDEV_CACHE_DIR = RUN_GANETI_DIR + "/bdev-cache"
 111 DISK_LINKS_DIR = RUN_GANETI_DIR + "/instance-disks"
 112 RUN_DIRS_MODE = 0775
 113 SOCKET_DIR = RUN_GANETI_DIR + "/socket"
 114 SECURE_DIR_MODE = 0700
 115 SECURE_FILE_MODE = 0600
 116 SOCKET_DIR_MODE = 0750
 117 CRYPTO_KEYS_DIR = RUN_GANETI_DIR + "/crypto"
 118 CRYPTO_KEYS_DIR_MODE = SECURE_DIR_MODE
 119 IMPORT_EXPORT_DIR = RUN_GANETI_DIR + "/import-export"
 120 IMPORT_EXPORT_DIR_MODE = 0755
 121 # keep RUN_GANETI_DIR first here, to make sure all get created when the node
 122 # daemon is started (this takes care of RUN_DIR being tmpfs)
 123 SUB_RUN_DIRS = [ RUN_GANETI_DIR, BDEV_CACHE_DIR, DISK_LINKS_DIR ]
 124 LOCK_DIR = _autoconf.LOCALSTATEDIR + "/lock"
 125 SSCONF_LOCK_FILE = LOCK_DIR + "/ganeti-ssconf.lock"
 126 # User-id pool lock directory
 127 # The user-ids that are in use have a corresponding lock file in this directory
 128 UIDPOOL_LOCKDIR = RUN_GANETI_DIR + "/uid-pool"
 129 CLUSTER_CONF_FILE = DATA_DIR + "/config.data"
 130 NODED_CERT_FILE = DATA_DIR + "/server.pem"
 131 RAPI_CERT_FILE = DATA_DIR + "/rapi.pem"
 132 CONFD_HMAC_KEY = DATA_DIR + "/hmac.key"
 133 CLUSTER_DOMAIN_SECRET_FILE = DATA_DIR + "/cluster-domain-secret"
 134 WATCHER_STATEFILE = DATA_DIR + "/watcher.data"
 135 WATCHER_PAUSEFILE = DATA_DIR + "/watcher.pause"
 136 INSTANCE_UPFILE = RUN_GANETI_DIR + "/instance-status"
 137 SSH_KNOWN_HOSTS_FILE = DATA_DIR + "/known_hosts"
 138 RAPI_USERS_FILE = DATA_DIR + "/rapi/users"
 139 QUEUE_DIR = DATA_DIR + "/queue"
 140 DAEMON_UTIL = _autoconf.PKGLIBDIR + "/daemon-util"
 141 SETUP_SSH = _autoconf.TOOLSDIR + "/setup-ssh"
 142 ETC_HOSTS = "/etc/hosts"
 143 DEFAULT_FILE_STORAGE_DIR = _autoconf.FILE_STORAGE_DIR
 144 ENABLE_FILE_STORAGE = _autoconf.ENABLE_FILE_STORAGE
 145 SYSCONFDIR = _autoconf.SYSCONFDIR
 146 TOOLSDIR = _autoconf.TOOLSDIR
 147 CONF_DIR = SYSCONFDIR + "/ganeti"
 148
 149 ALL_CERT_FILES = frozenset([NODED_CERT_FILE, RAPI_CERT_FILE])
 150
 151 MASTER_SOCKET = SOCKET_DIR + "/ganeti-master"
 152
 153 NODED = "ganeti-noded"
 154 CONFD = "ganeti-confd"
 155 RAPI = "ganeti-rapi"
 156 MASTERD = "ganeti-masterd"
 157 # used in the ganeti-nbma project
 158 NLD = "ganeti-nld"
 159
 160 DAEMONS_PORTS = {
 161   # daemon-name: ("proto", "default-port")
 162   NODED: ("tcp", 1811),
 163   CONFD: ("udp", 1814),
 164   RAPI: ("tcp", 5080),
 165   "ssh": ("tcp", 22),
 166   # used in the ganeti-nbma project
 167   NLD: ("udp", 1816),
 168 }
 169 DEFAULT_NODED_PORT = DAEMONS_PORTS[NODED][1]
 170 DEFAULT_CONFD_PORT = DAEMONS_PORTS[CONFD][1]
 171 DEFAULT_RAPI_PORT = DAEMONS_PORTS[RAPI][1]
 172 # used in the ganeti-nbma project
 173 DEFAULT_NLD_PORT = DAEMONS_PORTS[NLD][1]
 174
 175 FIRST_DRBD_PORT = 11000
 176 LAST_DRBD_PORT = 14999
 177 MASTER_SCRIPT = "ganeti-master"
 178
 179 LOG_DIR = _autoconf.LOCALSTATEDIR + "/log/ganeti/"
 180 DAEMONS_LOGFILES = {
 181   # "daemon-name": "logfile"
 182   NODED: LOG_DIR + "node-daemon.log",
 183   CONFD: LOG_DIR + "conf-daemon.log",
 184   RAPI: LOG_DIR + "rapi-daemon.log",
 185   MASTERD: LOG_DIR + "master-daemon.log",
 186   # used in the ganeti-nbma project
 187   NLD: LOG_DIR + "nl-daemon.log",
 188   }
 189
 190 LOG_OS_DIR = LOG_DIR + "os"
 191 LOG_WATCHER = LOG_DIR + "watcher.log"
 192 LOG_COMMANDS = LOG_DIR + "commands.log"
 193 LOG_BURNIN = LOG_DIR + "burnin.log"
 194 LOG_SETUP_SSH = LOG_DIR + "setup-ssh.log"
 195
 196 DEV_CONSOLE = "/dev/console"
 197
 198 PROC_MOUNTS = "/proc/mounts"
 199
 200 # luxi related constants
 201 LUXI_EOM = "\3"
 202 LUXI_VERSION = CONFIG_VERSION
 203
 204 # one of 'no', 'yes', 'only'
 205 SYSLOG_USAGE = _autoconf.SYSLOG_USAGE
 206 SYSLOG_NO = "no"
 207 SYSLOG_YES = "yes"
 208 SYSLOG_ONLY = "only"
 209 SYSLOG_SOCKET = "/dev/log"
 210
 211 OS_SEARCH_PATH = _autoconf.OS_SEARCH_PATH
 212 EXPORT_DIR = _autoconf.EXPORT_DIR
 213
 214 EXPORT_CONF_FILE = "config.ini"
 215
 216 XEN_BOOTLOADER = _autoconf.XEN_BOOTLOADER
 217 XEN_KERNEL = _autoconf.XEN_KERNEL
 218 XEN_INITRD = _autoconf.XEN_INITRD
 219
 220 KVM_PATH = _autoconf.KVM_PATH
 221 SOCAT_PATH = _autoconf.SOCAT_PATH
 222 SOCAT_USE_ESCAPE = _autoconf.SOCAT_USE_ESCAPE
 223 SOCAT_USE_COMPRESS = _autoconf.SOCAT_USE_COMPRESS
 224 SOCAT_ESCAPE_CODE = "0x1d"
 225
 226 #: Console as SSH command
 227 CONS_SSH = "ssh"
 228
 229 #: Console as VNC server
 230 CONS_VNC = "vnc"
 231
 232 #: Display a message for console access
 233 CONS_MESSAGE = "msg"
 234
 235 #: All console types
 236 CONS_ALL = frozenset([CONS_SSH, CONS_VNC, CONS_MESSAGE])
 237
 238 # For RSA keys more bits are better, but they also make operations more
 239 # expensive. NIST SP 800-131 recommends a minimum of 2048 bits from the year
 240 # 2010 on.
 241 RSA_KEY_BITS = 2048
 242
 243 # Ciphers allowed for SSL connections. For the format, see ciphers(1). A better
 244 # way to disable ciphers would be to use the exclamation mark (!), but socat
 245 # versions below 1.5 can't parse exclamation marks in options properly. When
 246 # modifying the ciphers, ensure not to accidentially add something after it's
 247 # been removed. Use the "openssl" utility to check the allowed ciphers, e.g.
 248 # "openssl ciphers -v HIGH:-DES".
 249 OPENSSL_CIPHERS = "HIGH:-DES:-3DES:-EXPORT:-ADH"
 250
 251 # Digest used to sign certificates ("openssl x509" uses SHA1 by default)
 252 X509_CERT_SIGN_DIGEST = "SHA1"
 253
 254 # Default validity of certificates in days
 255 X509_CERT_DEFAULT_VALIDITY = 365 * 5
 256
 257 # commonName (CN) used in certificates
 258 X509_CERT_CN = "ganeti.example.com"
 259
 260 X509_CERT_SIGNATURE_HEADER = "X-Ganeti-Signature"
 261
 262 IMPORT_EXPORT_DAEMON = _autoconf.PKGLIBDIR + "/import-export"
 263
 264 # Import/export daemon mode
 265 IEM_IMPORT = "import"
 266 IEM_EXPORT = "export"
 267
 268 # Import/export transport compression
 269 IEC_NONE = "none"
 270 IEC_GZIP = "gzip"
 271 IEC_ALL = frozenset([
 272   IEC_NONE,
 273   IEC_GZIP,
 274   ])
 275
 276 IE_CUSTOM_SIZE = "fd"
 277
 278 IE_MAGIC_RE = re.compile(r"^[-_.a-zA-Z0-9]{5,100}$")
 279
 280 # Import/export I/O
 281 # Direct file I/O, equivalent to a shell's I/O redirection using '<' or '>'
 282 IEIO_FILE = "file"
 283 # Raw block device I/O using "dd"
 284 IEIO_RAW_DISK = "raw"
 285 # OS definition import/export script
 286 IEIO_SCRIPT = "script"
 287
 288 VALUE_DEFAULT = "default"
 289 VALUE_AUTO = "auto"
 290 VALUE_GENERATE = "generate"
 291 VALUE_NONE = "none"
 292 VALUE_TRUE = "true"
 293 VALUE_FALSE = "false"
 294
 295 # External script validation mask
 296 EXT_PLUGIN_MASK = re.compile("^[a-zA-Z0-9_-]+$")
 297
 298 # hooks-related constants
 299 HOOKS_BASE_DIR = CONF_DIR + "/hooks"
 300 HOOKS_PHASE_PRE = "pre"
 301 HOOKS_PHASE_POST = "post"
 302 HOOKS_NAME_CFGUPDATE = "config-update"
 303 HOOKS_NAME_WATCHER = "watcher"
 304 HOOKS_VERSION = 2
 305
 306 # hooks subject type (what object type does the LU deal with)
 307 HTYPE_CLUSTER = "CLUSTER"
 308 HTYPE_NODE = "NODE"
 309 HTYPE_GROUP = "GROUP"
 310 HTYPE_INSTANCE = "INSTANCE"
 311
 312 HKR_SKIP = 0
 313 HKR_FAIL = 1
 314 HKR_SUCCESS = 2
 315
 316 # Storage types
 317 ST_FILE = "file"
 318 ST_LVM_PV = "lvm-pv"
 319 ST_LVM_VG = "lvm-vg"
 320
 321 # Storage fields
 322 # first two are valid in LU context only, not passed to backend
 323 SF_NODE = "node"
 324 SF_TYPE = "type"
 325 # and the rest are valid in backend
 326 SF_NAME = "name"
 327 SF_SIZE = "size"
 328 SF_FREE = "free"
 329 SF_USED = "used"
 330 SF_ALLOCATABLE = "allocatable"
 331
 332 # Storage operations
 333 SO_FIX_CONSISTENCY = "fix-consistency"
 334
 335 # Available fields per storage type
 336 VALID_STORAGE_FIELDS = frozenset([SF_NAME, SF_TYPE, SF_SIZE,
 337                                   SF_USED, SF_FREE, SF_ALLOCATABLE])
 338
 339 VALID_STORAGE_TYPES = frozenset([ST_FILE, ST_LVM_PV, ST_LVM_VG])
 340
 341 MODIFIABLE_STORAGE_FIELDS = {
 342   ST_LVM_PV: frozenset([SF_ALLOCATABLE]),
 343   }
 344
 345 VALID_STORAGE_OPERATIONS = {
 346   ST_LVM_VG: frozenset([SO_FIX_CONSISTENCY]),
 347   }
 348
 349 # Local disk status
 350 # Note: Code depends on LDS_OKAY < LDS_UNKNOWN < LDS_FAULTY
 351 (LDS_OKAY,
 352  LDS_UNKNOWN,
 353  LDS_FAULTY) = range(1, 4)
 354
 355 # disk template types
 356 DT_DISKLESS = "diskless"
 357 DT_PLAIN = "plain"
 358 DT_DRBD8 = "drbd"
 359 DT_FILE = "file"
 360
 361 # the set of network-mirrored disk templates
 362 DTS_NET_MIRROR = frozenset([DT_DRBD8])
 363
 364 # the set of non-lvm-based disk templates
 365 DTS_NOT_LVM = frozenset([DT_DISKLESS, DT_FILE])
 366
 367 # the set of disk templates which can be grown
 368 DTS_GROWABLE = frozenset([DT_PLAIN, DT_DRBD8, DT_FILE])
 369
 370 # the set of disk templates that allow adoption
 371 DTS_MAY_ADOPT = frozenset([DT_PLAIN])
 372
 373 # logical disk types
 374 LD_LV = "lvm"
 375 LD_DRBD8 = "drbd8"
 376 LD_FILE = "file"
 377 LDS_BLOCK = frozenset([LD_LV, LD_DRBD8])
 378
 379 # drbd constants
 380 DRBD_HMAC_ALG = "md5"
 381 DRBD_NET_PROTOCOL = "C"
 382 DRBD_BARRIERS = _autoconf.DRBD_BARRIERS
 383
 384 # file backend driver
 385 FD_LOOP = "loop"
 386 FD_BLKTAP = "blktap"
 387
 388 # the set of drbd-like disk types
 389 LDS_DRBD = frozenset([LD_DRBD8])
 390
 391 # disk access mode
 392 DISK_RDONLY = "ro"
 393 DISK_RDWR = "rw"
 394 DISK_ACCESS_SET = frozenset([DISK_RDONLY, DISK_RDWR])
 395
 396 # disk replacement mode
 397 REPLACE_DISK_PRI = "replace_on_primary"    # replace disks on primary
 398 REPLACE_DISK_SEC = "replace_on_secondary"  # replace disks on secondary
 399 REPLACE_DISK_CHG = "replace_new_secondary" # change secondary node
 400 REPLACE_DISK_AUTO = "replace_auto"
 401 REPLACE_MODES = frozenset([
 402   REPLACE_DISK_PRI,
 403   REPLACE_DISK_SEC,
 404   REPLACE_DISK_CHG,
 405   REPLACE_DISK_AUTO,
 406   ])
 407
 408 # Instance export mode
 409 EXPORT_MODE_LOCAL = "local"
 410 EXPORT_MODE_REMOTE = "remote"
 411 EXPORT_MODES = frozenset([
 412   EXPORT_MODE_LOCAL,
 413   EXPORT_MODE_REMOTE,
 414   ])
 415
 416 # lock recalculate mode
 417 LOCKS_REPLACE = 'replace'
 418 LOCKS_APPEND = 'append'
 419
 420 # instance creation modes
 421 INSTANCE_CREATE = "create"
 422 INSTANCE_IMPORT = "import"
 423 INSTANCE_REMOTE_IMPORT = "remote-import"
 424 INSTANCE_CREATE_MODES = frozenset([
 425   INSTANCE_CREATE,
 426   INSTANCE_IMPORT,
 427   INSTANCE_REMOTE_IMPORT,
 428   ])
 429
 430 # Remote import/export handshake message and version
 431 RIE_VERSION = 0
 432 RIE_HANDSHAKE = "Hi, I'm Ganeti"
 433
 434 # Remote import/export certificate validity in seconds
 435 RIE_CERT_VALIDITY = 24 * 60 * 60
 436
 437 # Remote import/export connect timeout for socat
 438 RIE_CONNECT_TIMEOUT = 60
 439 #: Give child process up to 5 seconds to exit after sending a signal
 440 CHILD_LINGER_TIMEOUT = 5.0
 441
 442 DISK_TEMPLATES = frozenset([DT_DISKLESS, DT_PLAIN,
 443                             DT_DRBD8, DT_FILE])
 444
 445 FILE_DRIVER = frozenset([FD_LOOP, FD_BLKTAP])
 446
 447 # import/export config options
 448 INISECT_EXP = "export"
 449 INISECT_INS = "instance"
 450 INISECT_HYP = "hypervisor"
 451 INISECT_BEP = "backend"
 452 INISECT_OSP = "os"
 453
 454 # dynamic device modification
 455 DDM_ADD = "add"
 456 DDM_REMOVE = "remove"
 457 DDMS_VALUES = frozenset([DDM_ADD, DDM_REMOVE])
 458
 459 # common exit codes
 460 EXIT_SUCCESS = 0
 461 EXIT_FAILURE = 1
 462 EXIT_NOTCLUSTER = 5
 463 EXIT_NOTMASTER = 11
 464 EXIT_NODESETUP_ERROR = 12
 465 EXIT_CONFIRMATION = 13 # need user confirmation
 466
 467 #: Exit code for query operations with unknown fields
 468 EXIT_UNKNOWN_FIELD = 14
 469
 470 # tags
 471 TAG_CLUSTER = "cluster"
 472 TAG_NODE = "node"
 473 TAG_INSTANCE = "instance"
 474 VALID_TAG_TYPES = frozenset([
 475   TAG_CLUSTER,
 476   TAG_NODE,
 477   TAG_INSTANCE,
 478   ])
 479 MAX_TAG_LEN = 128
 480 MAX_TAGS_PER_OBJ = 4096
 481
 482 # others
 483 DEFAULT_BRIDGE = "xen-br0"
 484 SYNC_SPEED = 60 * 1024
 485 IP4_ADDRESS_LOCALHOST = "127.0.0.1"
 486 IP4_ADDRESS_ANY = "0.0.0.0"
 487 IP6_ADDRESS_LOCALHOST = "::1"
 488 IP6_ADDRESS_ANY = "::"
 489 IP4_VERSION = 4
 490 IP6_VERSION = 6
 491 TCP_PING_TIMEOUT = 10
 492 GANETI_RUNAS = "root"
 493 DEFAULT_VG = "xenvg"
 494 DEFAULT_DRBD_HELPER = "/bin/true"
 495 MIN_VG_SIZE = 20480
 496 DEFAULT_MAC_PREFIX = "aa:00:00"
 497 LVM_STRIPECOUNT = _autoconf.LVM_STRIPECOUNT
 498 # default maximum instance wait time, in seconds.
 499 DEFAULT_SHUTDOWN_TIMEOUT = 120
 500 NODE_MAX_CLOCK_SKEW = 150
 501 # Time for an intra-cluster disk transfer to wait for a connection
 502 DISK_TRANSFER_CONNECT_TIMEOUT = 30
 503 # Disk index separator
 504 DISK_SEPARATOR = _autoconf.DISK_SEPARATOR
 505
 506 # runparts results
 507 (RUNPARTS_SKIP,
 508  RUNPARTS_RUN,
 509  RUNPARTS_ERR) = range(3)
 510
 511 RUNPARTS_STATUS = frozenset([RUNPARTS_SKIP, RUNPARTS_RUN, RUNPARTS_ERR])
 512
 513 # RPC constants
 514 (RPC_ENCODING_NONE,
 515  RPC_ENCODING_ZLIB_BASE64) = range(2)
 516
 517 # os related constants
 518 OS_SCRIPT_CREATE = 'create'
 519 OS_SCRIPT_IMPORT = 'import'
 520 OS_SCRIPT_EXPORT = 'export'
 521 OS_SCRIPT_RENAME = 'rename'
 522 OS_SCRIPT_VERIFY = 'verify'
 523 OS_SCRIPTS = frozenset([OS_SCRIPT_CREATE, OS_SCRIPT_IMPORT,
 524                         OS_SCRIPT_EXPORT, OS_SCRIPT_RENAME,
 525                         OS_SCRIPT_VERIFY])
 526
 527 OS_API_FILE = 'ganeti_api_version'
 528 OS_VARIANTS_FILE = 'variants.list'
 529 OS_PARAMETERS_FILE = 'parameters.list'
 530
 531 OS_VALIDATE_PARAMETERS = 'parameters'
 532 OS_VALIDATE_CALLS = frozenset([OS_VALIDATE_PARAMETERS])
 533
 534 # ssh constants
 535 SSH_CONFIG_DIR = _autoconf.SSH_CONFIG_DIR
 536 SSH_HOST_DSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_dsa_key"
 537 SSH_HOST_DSA_PUB = SSH_HOST_DSA_PRIV + ".pub"
 538 SSH_HOST_RSA_PRIV = SSH_CONFIG_DIR + "/ssh_host_rsa_key"
 539 SSH_HOST_RSA_PUB = SSH_HOST_RSA_PRIV + ".pub"
 540 SSH = "ssh"
 541 SCP = "scp"
 542
 543 # reboot types
 544 INSTANCE_REBOOT_SOFT = "soft"
 545 INSTANCE_REBOOT_HARD = "hard"
 546 INSTANCE_REBOOT_FULL = "full"
 547
 548 REBOOT_TYPES = frozenset([INSTANCE_REBOOT_SOFT,
 549                           INSTANCE_REBOOT_HARD,
 550                           INSTANCE_REBOOT_FULL])
 551
 552 VTYPE_STRING = 'string'
 553 VTYPE_MAYBE_STRING = "maybe-string"
 554 VTYPE_BOOL = 'bool'
 555 VTYPE_SIZE = 'size' # size, in MiBs
 556 VTYPE_INT = 'int'
 557 ENFORCEABLE_TYPES = frozenset([
 558                       VTYPE_STRING,
 559                       VTYPE_MAYBE_STRING,
 560                       VTYPE_BOOL,
 561                       VTYPE_SIZE,
 562                       VTYPE_INT,
 563                       ])
 564
 565 # HV parameter names (global namespace)
 566 HV_BOOT_ORDER = "boot_order"
 567 HV_CDROM_IMAGE_PATH = "cdrom_image_path"
 568 HV_NIC_TYPE = "nic_type"
 569 HV_DISK_TYPE = "disk_type"
 570 HV_VNC_BIND_ADDRESS = "vnc_bind_address"
 571 HV_VNC_PASSWORD_FILE = "vnc_password_file"
 572 HV_VNC_TLS = "vnc_tls"
 573 HV_VNC_X509 = "vnc_x509_path"
 574 HV_VNC_X509_VERIFY = "vnc_x509_verify"
 575 HV_ACPI = "acpi"
 576 HV_PAE = "pae"
 577 HV_USE_BOOTLOADER = "use_bootloader"
 578 HV_BOOTLOADER_ARGS = "bootloader_args"
 579 HV_BOOTLOADER_PATH = "bootloader_path"
 580 HV_KERNEL_ARGS = "kernel_args"
 581 HV_KERNEL_PATH = "kernel_path"
 582 HV_INITRD_PATH = "initrd_path"
 583 HV_ROOT_PATH = "root_path"
 584 HV_SERIAL_CONSOLE = "serial_console"
 585 HV_USB_MOUSE = "usb_mouse"
 586 HV_DEVICE_MODEL = "device_model"
 587 HV_INIT_SCRIPT = "init_script"
 588 HV_MIGRATION_PORT = "migration_port"
 589 HV_MIGRATION_BANDWIDTH = "migration_bandwidth"
 590 HV_MIGRATION_DOWNTIME = "migration_downtime"
 591 HV_MIGRATION_MODE = "migration_mode"
 592 HV_USE_LOCALTIME = "use_localtime"
 593 HV_DISK_CACHE = "disk_cache"
 594 HV_SECURITY_MODEL = "security_model"
 595 HV_SECURITY_DOMAIN = "security_domain"
 596 HV_KVM_FLAG = "kvm_flag"
 597 HV_VHOST_NET = "vhost_net"
 598 HV_KVM_USE_CHROOT = "use_chroot"
 599 HV_CPU_MASK = "cpu_mask"
 600 HV_MEM_PATH = "mem_path"
 601 HV_BLOCKDEV_PREFIX = "blockdev_prefix"
 602
 603 HVS_PARAMETER_TYPES = {
 604   HV_BOOT_ORDER: VTYPE_STRING,
 605   HV_CDROM_IMAGE_PATH: VTYPE_STRING,
 606   HV_NIC_TYPE: VTYPE_STRING,
 607   HV_DISK_TYPE: VTYPE_STRING,
 608   HV_VNC_PASSWORD_FILE: VTYPE_STRING,
 609   HV_VNC_BIND_ADDRESS: VTYPE_STRING,
 610   HV_VNC_TLS: VTYPE_BOOL,
 611   HV_VNC_X509: VTYPE_STRING,
 612   HV_VNC_X509_VERIFY: VTYPE_BOOL,
 613   HV_ACPI: VTYPE_BOOL,
 614   HV_PAE: VTYPE_BOOL,
 615   HV_USE_BOOTLOADER: VTYPE_BOOL,
 616   HV_BOOTLOADER_PATH: VTYPE_STRING,
 617   HV_BOOTLOADER_ARGS: VTYPE_STRING,
 618   HV_KERNEL_PATH: VTYPE_STRING,
 619   HV_KERNEL_ARGS: VTYPE_STRING,
 620   HV_INITRD_PATH: VTYPE_STRING,
 621   HV_ROOT_PATH: VTYPE_STRING,
 622   HV_SERIAL_CONSOLE: VTYPE_BOOL,
 623   HV_USB_MOUSE: VTYPE_STRING,
 624   HV_DEVICE_MODEL: VTYPE_STRING,
 625   HV_INIT_SCRIPT: VTYPE_STRING,
 626   HV_MIGRATION_PORT: VTYPE_INT,
 627   HV_MIGRATION_BANDWIDTH: VTYPE_INT,
 628   HV_MIGRATION_DOWNTIME: VTYPE_INT,
 629   HV_MIGRATION_MODE: VTYPE_STRING,
 630   HV_USE_LOCALTIME: VTYPE_BOOL,
 631   HV_DISK_CACHE: VTYPE_STRING,
 632   HV_SECURITY_MODEL: VTYPE_STRING,
 633   HV_SECURITY_DOMAIN: VTYPE_STRING,
 634   HV_KVM_FLAG: VTYPE_STRING,
 635   HV_VHOST_NET: VTYPE_BOOL,
 636   HV_KVM_USE_CHROOT: VTYPE_BOOL,
 637   HV_CPU_MASK: VTYPE_STRING,
 638   HV_MEM_PATH: VTYPE_STRING,
 639   HV_BLOCKDEV_PREFIX: VTYPE_STRING,
 640   }
 641
 642 HVS_PARAMETERS = frozenset(HVS_PARAMETER_TYPES.keys())
 643
 644 # BE parameter names
 645 BE_MEMORY = "memory"
 646 BE_VCPUS = "vcpus"
 647 BE_AUTO_BALANCE = "auto_balance"
 648
 649 BES_PARAMETER_TYPES = {
 650     BE_MEMORY: VTYPE_SIZE,
 651     BE_VCPUS: VTYPE_INT,
 652     BE_AUTO_BALANCE: VTYPE_BOOL,
 653     }
 654
 655 BES_PARAMETERS = frozenset(BES_PARAMETER_TYPES.keys())
 656
 657 # Node parameter names
 658 ND_OOB_PROGRAM = "oob_program"
 659
 660 NDS_PARAMETER_TYPES = {
 661     ND_OOB_PROGRAM: VTYPE_MAYBE_STRING,
 662     }
 663
 664 NDS_PARAMETERS = frozenset(NDS_PARAMETER_TYPES.keys())
 665
 666 # OOB supported commands
 667 OOB_POWER_ON = "power-on"
 668 OOB_POWER_OFF = "power-off"
 669 OOB_POWER_CYCLE = "power-cycle"
 670 OOB_POWER_STATUS = "power-status"
 671 OOB_HEALTH = "health"
 672
 673 OOB_COMMANDS = frozenset([OOB_POWER_ON, OOB_POWER_OFF, OOB_POWER_CYCLE,
 674                           OOB_POWER_STATUS, OOB_HEALTH])
 675
 676 OOB_POWER_STATUS_POWERED = "powered"
 677
 678 OOB_TIMEOUT = 60 # 60 seconds
 679
 680 OOB_STATUS_OK = "OK"
 681 OOB_STATUS_WARNING = "WARNING"
 682 OOB_STATUS_CRITICAL = "CRITICAL"
 683 OOB_STATUS_UNKNOWN = "UNKNOWN"
 684
 685 OOB_STATUSES = frozenset([
 686   OOB_STATUS_OK,
 687   OOB_STATUS_WARNING,
 688   OOB_STATUS_CRITICAL,
 689   OOB_STATUS_UNKNOWN,
 690   ])
 691
 692 # Instance Parameters Profile
 693 PP_DEFAULT = "default"
 694
 695 NIC_MODE = "mode"
 696 NIC_LINK = "link"
 697
 698 NIC_MODE_BRIDGED = "bridged"
 699 NIC_MODE_ROUTED = "routed"
 700
 701 NIC_VALID_MODES = frozenset([NIC_MODE_BRIDGED, NIC_MODE_ROUTED])
 702
 703 NICS_PARAMETER_TYPES = {
 704     NIC_MODE: VTYPE_STRING,
 705     NIC_LINK: VTYPE_STRING,
 706     }
 707
 708 NICS_PARAMETERS = frozenset(NICS_PARAMETER_TYPES.keys())
 709
 710 IDISK_SIZE = "size"
 711 IDISK_MODE = "mode"
 712 IDISK_ADOPT = "adopt"
 713 IDISK_VG = "vg"
 714 IDISK_PARAMS_TYPES = {
 715   IDISK_SIZE: VTYPE_SIZE,
 716   IDISK_MODE: VTYPE_STRING,
 717   IDISK_ADOPT: VTYPE_STRING,
 718   IDISK_VG: VTYPE_STRING,
 719   }
 720 IDISK_PARAMS = frozenset(IDISK_PARAMS_TYPES.keys())
 721
 722 INIC_MAC = "mac"
 723 INIC_IP = "ip"
 724 INIC_MODE = "mode"
 725 INIC_LINK = "link"
 726 INIC_BRIDGE = "bridge"
 727 INIC_PARAMS_TYPES = {
 728   INIC_BRIDGE: VTYPE_STRING,
 729   INIC_IP: VTYPE_MAYBE_STRING,
 730   INIC_LINK: VTYPE_STRING,
 731   INIC_MAC: VTYPE_STRING,
 732   INIC_MODE: VTYPE_STRING,
 733   }
 734 INIC_PARAMS = frozenset(INIC_PARAMS_TYPES.keys())
 735
 736 # Hypervisor constants
 737 HT_XEN_PVM = "xen-pvm"
 738 HT_FAKE = "fake"
 739 HT_XEN_HVM = "xen-hvm"
 740 HT_KVM = "kvm"
 741 HT_CHROOT = "chroot"
 742 HT_LXC = "lxc"
 743 HYPER_TYPES = frozenset([
 744   HT_XEN_PVM,
 745   HT_FAKE,
 746   HT_XEN_HVM,
 747   HT_KVM,
 748   HT_CHROOT,
 749   HT_LXC,
 750   ])
 751 HTS_REQ_PORT = frozenset([HT_XEN_HVM, HT_KVM])
 752
 753 VNC_BASE_PORT = 5900
 754 VNC_PASSWORD_FILE = CONF_DIR + "/vnc-cluster-password"
 755 VNC_DEFAULT_BIND_ADDRESS = IP4_ADDRESS_ANY
 756
 757 # NIC types
 758 HT_NIC_RTL8139 = "rtl8139"
 759 HT_NIC_NE2K_PCI = "ne2k_pci"
 760 HT_NIC_NE2K_ISA = "ne2k_isa"
 761 HT_NIC_I82551 = "i82551"
 762 HT_NIC_I85557B = "i82557b"
 763 HT_NIC_I8259ER = "i82559er"
 764 HT_NIC_PCNET = "pcnet"
 765 HT_NIC_E1000 = "e1000"
 766 HT_NIC_PARAVIRTUAL = HT_DISK_PARAVIRTUAL = "paravirtual"
 767
 768 HT_HVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 769                                     HT_NIC_NE2K_ISA, HT_NIC_PARAVIRTUAL])
 770 HT_KVM_VALID_NIC_TYPES = frozenset([HT_NIC_RTL8139, HT_NIC_NE2K_PCI,
 771                                     HT_NIC_NE2K_ISA, HT_NIC_I82551,
 772                                     HT_NIC_I85557B, HT_NIC_I8259ER,
 773                                     HT_NIC_PCNET, HT_NIC_E1000,
 774                                     HT_NIC_PARAVIRTUAL])
 775 # Disk types
 776 HT_DISK_IOEMU = "ioemu"
 777 HT_DISK_IDE = "ide"
 778 HT_DISK_SCSI = "scsi"
 779 HT_DISK_SD = "sd"
 780 HT_DISK_MTD = "mtd"
 781 HT_DISK_PFLASH = "pflash"
 782
 783 HT_CACHE_DEFAULT = "default"
 784 HT_CACHE_NONE = "none"
 785 HT_CACHE_WTHROUGH = "writethrough"
 786 HT_CACHE_WBACK = "writeback"
 787 HT_VALID_CACHE_TYPES = frozenset([HT_CACHE_DEFAULT,
 788                                   HT_CACHE_NONE,
 789                                   HT_CACHE_WTHROUGH,
 790                                   HT_CACHE_WBACK])
 791
 792 HT_HVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IOEMU])
 793 HT_KVM_VALID_DISK_TYPES = frozenset([HT_DISK_PARAVIRTUAL, HT_DISK_IDE,
 794                                      HT_DISK_SCSI, HT_DISK_SD, HT_DISK_MTD,
 795                                      HT_DISK_PFLASH])
 796
 797 # Mouse types:
 798 HT_MOUSE_MOUSE = "mouse"
 799 HT_MOUSE_TABLET = "tablet"
 800
 801 HT_KVM_VALID_MOUSE_TYPES = frozenset([HT_MOUSE_MOUSE, HT_MOUSE_TABLET])
 802
 803 # Boot order
 804 HT_BO_CDROM = "cdrom"
 805 HT_BO_DISK = "disk"
 806 HT_BO_NETWORK = "network"
 807
 808 HT_KVM_VALID_BO_TYPES = frozenset([HT_BO_CDROM, HT_BO_DISK, HT_BO_NETWORK])
 809
 810 # Security models
 811 HT_SM_NONE = "none"
 812 HT_SM_USER = "user"
 813 HT_SM_POOL = "pool"
 814
 815 HT_KVM_VALID_SM_TYPES = frozenset([HT_SM_NONE, HT_SM_USER, HT_SM_POOL])
 816
 817 # Kvm flag values
 818 HT_KVM_ENABLED = "enabled"
 819 HT_KVM_DISABLED = "disabled"
 820
 821 HT_KVM_FLAG_VALUES = frozenset([HT_KVM_ENABLED, HT_KVM_DISABLED])
 822
 823 # Migration type
 824 HT_MIGRATION_LIVE = "live"
 825 HT_MIGRATION_NONLIVE = "non-live"
 826 HT_MIGRATION_MODES = frozenset([HT_MIGRATION_LIVE, HT_MIGRATION_NONLIVE])
 827
 828 # Cluster Verify steps
 829 VERIFY_NPLUSONE_MEM = 'nplusone_mem'
 830 VERIFY_OPTIONAL_CHECKS = frozenset([VERIFY_NPLUSONE_MEM])
 831
 832 # Node verify constants
 833 NV_DRBDHELPER = "drbd-helper"
 834 NV_DRBDLIST = "drbd-list"
 835 NV_FILELIST = "filelist"
 836 NV_HVINFO = "hvinfo"
 837 NV_HYPERVISOR = "hypervisor"
 838 NV_INSTANCELIST = "instancelist"
 839 NV_LVLIST = "lvlist"
 840 NV_MASTERIP = "master-ip"
 841 NV_NODELIST = "nodelist"
 842 NV_NODENETTEST = "node-net-test"
 843 NV_NODESETUP = "nodesetup"
 844 NV_OSLIST = "oslist"
 845 NV_PVLIST = "pvlist"
 846 NV_TIME = "time"
 847 NV_VERSION = "version"
 848 NV_VGLIST = "vglist"
 849 NV_VMNODES = "vmnodes"
 850 NV_OOB_PATHS = "oob-paths"
 851
 852 # SSL certificate check constants (in days)
 853 SSL_CERT_EXPIRATION_WARN = 30
 854 SSL_CERT_EXPIRATION_ERROR = 7
 855
 856 # Allocator framework constants
 857 IALLOCATOR_VERSION = 2
 858 IALLOCATOR_DIR_IN = "in"
 859 IALLOCATOR_DIR_OUT = "out"
 860 VALID_IALLOCATOR_DIRECTIONS = frozenset([
 861   IALLOCATOR_DIR_IN,
 862   IALLOCATOR_DIR_OUT,
 863   ])
 864 IALLOCATOR_MODE_ALLOC = "allocate"
 865 IALLOCATOR_MODE_RELOC = "relocate"
 866 IALLOCATOR_MODE_MEVAC = "multi-evacuate"
 867 VALID_IALLOCATOR_MODES = frozenset([
 868   IALLOCATOR_MODE_ALLOC,
 869   IALLOCATOR_MODE_RELOC,
 870   IALLOCATOR_MODE_MEVAC,
 871   ])
 872 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH
 873
 874 # Job queue
 875 JOB_QUEUE_VERSION = 1
 876 JOB_QUEUE_LOCK_FILE = QUEUE_DIR + "/lock"
 877 JOB_QUEUE_VERSION_FILE = QUEUE_DIR + "/version"
 878 JOB_QUEUE_SERIAL_FILE = QUEUE_DIR + "/serial"
 879 JOB_QUEUE_ARCHIVE_DIR = QUEUE_DIR + "/archive"
 880 JOB_QUEUE_DRAIN_FILE = QUEUE_DIR + "/drain"
 881 JOB_QUEUE_SIZE_HARD_LIMIT = 5000
 882 JOB_QUEUE_DIRS = [QUEUE_DIR, JOB_QUEUE_ARCHIVE_DIR]
 883 JOB_QUEUE_DIRS_MODE = SECURE_DIR_MODE
 884
 885 JOB_ID_TEMPLATE = r"\d+"
 886
 887 # unchanged job return
 888 JOB_NOTCHANGED = "nochange"
 889
 890 # Job status
 891 JOB_STATUS_QUEUED = "queued"
 892 JOB_STATUS_WAITLOCK = "waiting"
 893 JOB_STATUS_CANCELING = "canceling"
 894 JOB_STATUS_RUNNING = "running"
 895 JOB_STATUS_CANCELED = "canceled"
 896 JOB_STATUS_SUCCESS = "success"
 897 JOB_STATUS_ERROR = "error"
 898 JOBS_FINALIZED = frozenset([
 899   JOB_STATUS_CANCELED,
 900   JOB_STATUS_SUCCESS,
 901   JOB_STATUS_ERROR,
 902   ])
 903 JOB_STATUS_ALL = frozenset([
 904   JOB_STATUS_QUEUED,
 905   JOB_STATUS_WAITLOCK,
 906   JOB_STATUS_CANCELING,
 907   JOB_STATUS_RUNNING,
 908   ]) | JOBS_FINALIZED
 909
 910 # OpCode status
 911 # not yet finalized
 912 OP_STATUS_QUEUED = "queued"
 913 OP_STATUS_WAITLOCK = "waiting"
 914 OP_STATUS_CANCELING = "canceling"
 915 OP_STATUS_RUNNING = "running"
 916 # finalized
 917 OP_STATUS_CANCELED = "canceled"
 918 OP_STATUS_SUCCESS = "success"
 919 OP_STATUS_ERROR = "error"
 920 OPS_FINALIZED = frozenset([OP_STATUS_CANCELED,
 921                            OP_STATUS_SUCCESS,
 922                            OP_STATUS_ERROR])
 923
 924 # OpCode priority
 925 OP_PRIO_LOWEST = +19
 926 OP_PRIO_HIGHEST = -20
 927
 928 OP_PRIO_LOW = +10
 929 OP_PRIO_NORMAL = 0
 930 OP_PRIO_HIGH = -10
 931
 932 OP_PRIO_SUBMIT_VALID = frozenset([
 933   OP_PRIO_LOW,
 934   OP_PRIO_NORMAL,
 935   OP_PRIO_HIGH,
 936   ])
 937
 938 OP_PRIO_DEFAULT = OP_PRIO_NORMAL
 939
 940 # Execution log types
 941 ELOG_MESSAGE = "message"
 942 ELOG_PROGRESS = "progress"
 943 ELOG_REMOTE_IMPORT = "remote-import"
 944 ELOG_JQUEUE_TEST = "jqueue-test"
 945
 946 # /etc/hosts modification
 947 ETC_HOSTS_ADD = "add"
 948 ETC_HOSTS_REMOVE = "remove"
 949
 950 # Job queue test
 951 JQT_MSGPREFIX = "TESTMSG="
 952 JQT_EXPANDNAMES = "expandnames"
 953 JQT_EXEC = "exec"
 954 JQT_LOGMSG = "logmsg"
 955 JQT_STARTMSG = "startmsg"
 956 JQT_ALL = frozenset([
 957   JQT_EXPANDNAMES,
 958   JQT_EXEC,
 959   JQT_LOGMSG,
 960   JQT_STARTMSG,
 961   ])
 962
 963 # Query resources
 964 QR_INSTANCE = "instance"
 965 QR_NODE = "node"
 966 QR_LOCK = "lock"
 967 QR_GROUP = "group"
 968
 969 #: List of resources which can be queried using L{opcodes.OpQuery}
 970 QR_OP_QUERY = frozenset([QR_INSTANCE, QR_NODE, QR_GROUP])
 971
 972 #: List of resources which can be queried using LUXI
 973 QR_OP_LUXI = QR_OP_QUERY.union([
 974   QR_LOCK,
 975   ])
 976
 977 # Query field types
 978 QFT_UNKNOWN = "unknown"
 979 QFT_TEXT = "text"
 980 QFT_BOOL = "bool"
 981 QFT_NUMBER = "number"
 982 QFT_UNIT = "unit"
 983 QFT_TIMESTAMP = "timestamp"
 984 QFT_OTHER = "other"
 985
 986 #: All query field types
 987 QFT_ALL = frozenset([
 988   QFT_UNKNOWN,
 989   QFT_TEXT,
 990   QFT_BOOL,
 991   QFT_NUMBER,
 992   QFT_UNIT,
 993   QFT_TIMESTAMP,
 994   QFT_OTHER,
 995   ])
 996
 997 # Query result field status (don't change or reuse values as they're used by
 998 # clients)
 999 #: Normal field status
1000 QRFS_NORMAL = 0
1001 #: Unknown field
1002 QRFS_UNKNOWN = 1
1003 #: No data (e.g. RPC error), can be used instead of L{QRFS_OFFLINE}
1004 QRFS_NODATA = 2
1005 #: Value unavailable for item
1006 QRFS_UNAVAIL = 3
1007 #: Resource marked offline
1008 QRFS_OFFLINE = 4
1009
1010 QRFS_ALL = frozenset([
1011   QRFS_NORMAL,
1012   QRFS_UNKNOWN,
1013   QRFS_NODATA,
1014   QRFS_UNAVAIL,
1015   QRFS_OFFLINE,
1016   ])
1017
1018 # max dynamic devices
1019 MAX_NICS = 8
1020 MAX_DISKS = 16
1021
1022 # SSCONF keys
1023 SS_CLUSTER_NAME = "cluster_name"
1024 SS_CLUSTER_TAGS = "cluster_tags"
1025 SS_FILE_STORAGE_DIR = "file_storage_dir"
1026 SS_MASTER_CANDIDATES = "master_candidates"
1027 SS_MASTER_CANDIDATES_IPS = "master_candidates_ips"
1028 SS_MASTER_IP = "master_ip"
1029 SS_MASTER_NETDEV = "master_netdev"
1030 SS_MASTER_NODE = "master_node"
1031 SS_NODE_LIST = "node_list"
1032 SS_NODE_PRIMARY_IPS = "node_primary_ips"
1033 SS_NODE_SECONDARY_IPS = "node_secondary_ips"
1034 SS_OFFLINE_NODES = "offline_nodes"
1035 SS_ONLINE_NODES = "online_nodes"
1036 SS_PRIMARY_IP_FAMILY = "primary_ip_family"
1037 SS_INSTANCE_LIST = "instance_list"
1038 SS_RELEASE_VERSION = "release_version"
1039 SS_HYPERVISOR_LIST = "hypervisor_list"
1040 SS_MAINTAIN_NODE_HEALTH = "maintain_node_health"
1041 SS_UID_POOL = "uid_pool"
1042 SS_NODEGROUPS = "nodegroups"
1043
1044 # cluster wide default parameters
1045 DEFAULT_ENABLED_HYPERVISOR = HT_XEN_PVM
1046
1047 HVC_DEFAULTS = {
1048   HT_XEN_PVM: {
1049     HV_USE_BOOTLOADER: False,
1050     HV_BOOTLOADER_PATH: XEN_BOOTLOADER,
1051     HV_BOOTLOADER_ARGS: '',
1052     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-xenU",
1053     HV_INITRD_PATH: '',
1054     HV_ROOT_PATH: '/dev/sda1',
1055     HV_KERNEL_ARGS: 'ro',
1056     HV_MIGRATION_PORT: 8002,
1057     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1058     HV_BLOCKDEV_PREFIX: "sd",
1059     },
1060   HT_XEN_HVM: {
1061     HV_BOOT_ORDER: "cd",
1062     HV_CDROM_IMAGE_PATH: '',
1063     HV_NIC_TYPE: HT_NIC_RTL8139,
1064     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1065     HV_VNC_BIND_ADDRESS: IP4_ADDRESS_ANY,
1066     HV_VNC_PASSWORD_FILE: VNC_PASSWORD_FILE,
1067     HV_ACPI: True,
1068     HV_PAE: True,
1069     HV_KERNEL_PATH: "/usr/lib/xen/boot/hvmloader",
1070     HV_DEVICE_MODEL: "/usr/lib/xen/bin/qemu-dm",
1071     HV_MIGRATION_PORT: 8002,
1072     HV_MIGRATION_MODE: HT_MIGRATION_NONLIVE,
1073     HV_USE_LOCALTIME: False,
1074     HV_BLOCKDEV_PREFIX: "hd",
1075     },
1076   HT_KVM: {
1077     HV_KERNEL_PATH: "/boot/vmlinuz-2.6-kvmU",
1078     HV_INITRD_PATH: '',
1079     HV_KERNEL_ARGS: 'ro',
1080     HV_ROOT_PATH: '/dev/vda1',
1081     HV_ACPI: True,
1082     HV_SERIAL_CONSOLE: True,
1083     HV_VNC_BIND_ADDRESS: '',
1084     HV_VNC_TLS: False,
1085     HV_VNC_X509: '',
1086     HV_VNC_X509_VERIFY: False,
1087     HV_VNC_PASSWORD_FILE: '',
1088     HV_CDROM_IMAGE_PATH: '',
1089     HV_BOOT_ORDER: HT_BO_DISK,
1090     HV_NIC_TYPE: HT_NIC_PARAVIRTUAL,
1091     HV_DISK_TYPE: HT_DISK_PARAVIRTUAL,
1092     HV_USB_MOUSE: '',
1093     HV_MIGRATION_PORT: 8102,
1094     HV_MIGRATION_BANDWIDTH: 32, # MiB/s
1095     HV_MIGRATION_DOWNTIME: 30,  # ms
1096     HV_MIGRATION_MODE: HT_MIGRATION_LIVE,
1097     HV_USE_LOCALTIME: False,
1098     HV_DISK_CACHE: HT_CACHE_DEFAULT,
1099     HV_SECURITY_MODEL: HT_SM_NONE,
1100     HV_SECURITY_DOMAIN: '',
1101     HV_KVM_FLAG: "",
1102     HV_VHOST_NET: False,
1103     HV_KVM_USE_CHROOT: False,
1104     HV_MEM_PATH: "",
1105     },
1106   HT_FAKE: {
1107     },
1108   HT_CHROOT: {
1109     HV_INIT_SCRIPT: "/ganeti-chroot",
1110     },
1111   HT_LXC: {
1112     HV_CPU_MASK: "",
1113     },
1114   }
1115
1116 HVC_GLOBALS = frozenset([
1117   HV_MIGRATION_PORT,
1118   HV_MIGRATION_BANDWIDTH,
1119   HV_MIGRATION_MODE,
1120   ])
1121
1122 BEC_DEFAULTS = {
1123   BE_MEMORY: 128,
1124   BE_VCPUS: 1,
1125   BE_AUTO_BALANCE: True,
1126   }
1127
1128 NDC_DEFAULTS = {
1129   ND_OOB_PROGRAM: None,
1130   }
1131
1132 NICC_DEFAULTS = {
1133   NIC_MODE: NIC_MODE_BRIDGED,
1134   NIC_LINK: DEFAULT_BRIDGE,
1135   }
1136
1137 MASTER_POOL_SIZE_DEFAULT = 10
1138
1139 CONFD_PROTOCOL_VERSION = 1
1140
1141 CONFD_REQ_PING = 0
1142 CONFD_REQ_NODE_ROLE_BYNAME = 1
1143 CONFD_REQ_NODE_PIP_BY_INSTANCE_IP = 2
1144 CONFD_REQ_CLUSTER_MASTER = 3
1145 CONFD_REQ_NODE_PIP_LIST = 4
1146 CONFD_REQ_MC_PIP_LIST = 5
1147 CONFD_REQ_INSTANCES_IPS_LIST = 6
1148
1149 # Confd request query fields. These are used to narrow down queries.
1150 # These must be strings rather than integers, because json-encoding
1151 # converts them to strings anyway, as they're used as dict-keys.
1152 CONFD_REQQ_LINK = "0"
1153 CONFD_REQQ_IP = "1"
1154 CONFD_REQQ_IPLIST = "2"
1155 CONFD_REQQ_FIELDS = "3"
1156
1157 CONFD_REQFIELD_NAME = "0"
1158 CONFD_REQFIELD_IP = "1"
1159 CONFD_REQFIELD_MNODE_PIP = "2"
1160
1161 CONFD_REQS = frozenset([
1162   CONFD_REQ_PING,
1163   CONFD_REQ_NODE_ROLE_BYNAME,
1164   CONFD_REQ_NODE_PIP_BY_INSTANCE_IP,
1165   CONFD_REQ_CLUSTER_MASTER,
1166   CONFD_REQ_NODE_PIP_LIST,
1167   CONFD_REQ_MC_PIP_LIST,
1168   CONFD_REQ_INSTANCES_IPS_LIST,
1169   ])
1170
1171 CONFD_REPL_STATUS_OK = 0
1172 CONFD_REPL_STATUS_ERROR = 1
1173 CONFD_REPL_STATUS_NOTIMPLEMENTED = 2
1174
1175 CONFD_REPL_STATUSES = frozenset([
1176   CONFD_REPL_STATUS_OK,
1177   CONFD_REPL_STATUS_ERROR,
1178   CONFD_REPL_STATUS_NOTIMPLEMENTED,
1179   ])
1180
1181 (CONFD_NODE_ROLE_MASTER,
1182  CONFD_NODE_ROLE_CANDIDATE,
1183  CONFD_NODE_ROLE_OFFLINE,
1184  CONFD_NODE_ROLE_DRAINED,
1185  CONFD_NODE_ROLE_REGULAR,
1186  ) = range(5)
1187
1188 # A few common errors for confd
1189 CONFD_ERROR_UNKNOWN_ENTRY = 1
1190 CONFD_ERROR_INTERNAL = 2
1191 CONFD_ERROR_ARGUMENT = 3
1192
1193 # Each request is "salted" by the current timestamp.
1194 # This constants decides how many seconds of skew to accept.
1195 # TODO: make this a default and allow the value to be more configurable
1196 CONFD_MAX_CLOCK_SKEW = 2 * NODE_MAX_CLOCK_SKEW
1197
1198 # When we haven't reloaded the config for more than this amount of seconds, we
1199 # force a test to see if inotify is betraying us.
1200 CONFD_CONFIG_RELOAD_TIMEOUT = 60
1201
1202 # If we receive more than one update in this amount of seconds, we move to
1203 # polling every RATELIMIT seconds, rather than relying on inotify, to be able
1204 # to serve more requests.
1205 CONFD_CONFIG_RELOAD_RATELIMIT = 2
1206
1207 # Magic number prepended to all confd queries.
1208 # This allows us to distinguish different types of confd protocols and handle
1209 # them. For example by changing this we can move the whole payload to be
1210 # compressed, or move away from json.
1211 CONFD_MAGIC_FOURCC = 'plj0'
1212
1213 # By default a confd request is sent to the minimum between this number and all
1214 # MCs. 6 was chosen because even in the case of a disastrous 50% response rate,
1215 # we should have enough answers to be able to compare more than one.
1216 CONFD_DEFAULT_REQ_COVERAGE = 6
1217
1218 # Timeout in seconds to expire pending query request in the confd client
1219 # library. We don't actually expect any answer more than 10 seconds after we
1220 # sent a request.
1221 CONFD_CLIENT_EXPIRE_TIMEOUT = 10
1222
1223 # Maximum UDP datagram size.
1224 # On IPv4: 64K - 20 (ip header size) - 8 (udp header size) = 65507
1225 # On IPv6: 64K - 40 (ip6 header size) - 8 (udp header size) = 65487
1226 #   (assuming we can't use jumbo frames)
1227 # We just set this to 60K, which should be enough
1228 MAX_UDP_DATA_SIZE = 61440
1229
1230 # User-id pool minimum/maximum acceptable user-ids.
1231 UIDPOOL_UID_MIN = 0
1232 UIDPOOL_UID_MAX = 2**32-1 # Assuming 32 bit user-ids
1233
1234 # Name or path of the pgrep command
1235 PGREP = "pgrep"
1236
1237 # Name of the node group that gets created at cluster init or upgrade
1238 INITIAL_NODE_GROUP_NAME = "default"
1239
1240 # Possible values for NodeGroup.alloc_policy
1241 ALLOC_POLICY_PREFERRED = "preferred"
1242 ALLOC_POLICY_LAST_RESORT = "last_resort"
1243 ALLOC_POLICY_UNALLOCABLE = "unallocable"
1244 VALID_ALLOC_POLICIES = [
1245   ALLOC_POLICY_PREFERRED,
1246   ALLOC_POLICY_LAST_RESORT,
1247   ALLOC_POLICY_UNALLOCABLE,
1248   ]